MmTokm (Function)

This converts the input given in megameters into kilometers.

Syntax

<DOUBLE> unitconversion:MmTokm(<INT|LONG|FLOAT|DOUBLE> p1)

Query Parameters

Name	Description	Default Value	Possible Data Types	Optional	Dynamic
p1	The value that needs to be converted from megameters into kilometers.		INT LONG FLOAT DOUBLE	No	Yes

Example 1

SELECT unitconversion:MmTokm(1) AS kilometers;

This query uses the unitconversion:MmTokm() function to convert the value of 1 megameter into its equivalent value in kilometers. The conversion result is 1000 kilometers.

Example 2

CREATE STREAM InputStream (distance_mm double);
CREATE SINK STREAM OutputStream (distance_mm double, distance_km double);

@info(name = 'distanceConversionQuery')
INSERT INTO OutputStream
SELECT distance_mm, unitconversion:MmTokm(distance_mm) AS distance_km
FROM InputStream;

In this example, an input stream called InputStream is created with a single attribute, distance_mm, representing distance values in megameters. Then, an output stream called OutputStream is defined, which will contain the original distance in megameters as well as the converted distance in kilometers.

The distanceConversionQuery processes events from the InputStream. It uses the unitconversion:MmTokm() function to convert the distance_mm attribute from the InputStream into its corresponding value in kilometers, and this value is assigned to the distance_km attribute in the OutputStream.

The query outputs the original distance in megameters and the converted distance in kilometers for each event to the OutputStream.